Using async-http-faraday adapter doesn't work

[mackross]

Describe the bug
Unable to use ruby-openai with the 'async' fiber scheduler, the faraday adapter throws an error.

To Reproduce
Add async-http-faraday gem to Gemfile
include require 'async/http/faraday' somewhere.

Use client = OpenAI::Client.new do{ |f| f.adapter = :async_http } for a streaming completion.

raises error Faraday::NilStatusError: http status could not be derived from the server response

Expected behavior
Works as normal

[atesgoral]

Just ran into this same issue. I might poke at it.

[atesgoral]

Tried creating a breaking test first by hijacking an existing test, but the problem I ran into is I couldn't get VCR + WebMock + Async:HTTP play well. The mocking isn't working yet: #550

[mackross]

Thanks for taking a look!